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Finding the Third Proportional to 28,408 and 66,352

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Solution

The third proportional to 28,408 and 66,352 is: 154,977.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,408 : 66,352 = 66,352 : x
  2. Step 2: Convert to fraction form
    28,408/66,352 = 66,352/x
  3. Step 3: Cross multiply
    28,408x = 66,352 × 66,352
  4. Step 4: Simplify right side
    28,408x = 4,402,587,904
  5. Step 5: Solve for x
    x = 4,402,587,904/28,408
  6. Step 6: Final answer
    x = 154,977.05

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.